> ## Documentation Index > Fetch the complete documentation index at: https://docs.berachain.com/llms.txt > Use this file to discover all available pages before exploring further. # Public Allocator > Just-in-time liquidity reallocation between Bend markets; how borrowers get liquidity from multiple vault markets. Isolated markets in Morpho/Bend contain risk but can **fragment liquidity** across many pools. You might want to borrow from a market that doesn't have enough supply. The **Public Allocator** fixes this: it reallocates a vault's assets between markets on demand so your borrow can succeed. The Public Allocator is a smart contract that routes liquidity and moves assets between markets when a borrow needs them. The Vault Owner must whitelist the Public Allocator contract for it to operate. ## Overview The Public Allocator is callable by anyone. It can move a vault's idle or underused supply into the market where a borrower needs liquidity, at the time of the borrow. For you as a borrower, many small pools behave like one deep pool, with isolated risk preserved. ## Borrower flow Example: you want to borrow 1,000 WETH from the wstETH/WETH market, but that market only has 200 WETH. 1. **Borrow request**: You (or your app) initiate the borrow. The system sees a 800 WETH shortfall. 2. **Allocator runs**: The Public Allocator is called. It finds 800 WETH in other markets where the same vault has supply (e.g. idle or an underused rETH/WETH market). 3. **Reallocate**: The Allocator runs `reallocate`, moving 800 WETH into the wstETH/WETH market. 4. **Borrow**: The market now has 1,000 WETH; your borrow completes. With a **Bundler**, reallocation and borrow happen in **one transaction**. You get deep liquidity in a single step. ## Curator controls: flow caps Curators limit how much the Public Allocator can move: * **maxIn**: Max assets the Allocator can move **into** a market. * **maxOut**: Max assets it can move **out of** a market. So liquidity stays flexible but within the vault's risk parameters.